#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
struct st
{
	int x, * y;
}*p;
int a[] = { 10,20,30,40 };
struct st b[] = { 1,&a[0],2,&a[1],3,&a[2],4,&a[3] };
int main()
{
	p = b;
	printf("%d\n", ++(*(++p)->y));
	return 0;
}